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Jeneng Produk: |
2,5-Dimethyl pyrazine |
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Sinonim: |
tomfor; 2,5-Dimethylpyrazine 98 +%; 2,5-Dimethylprazin; 2,5-Dimethylpyrazine (ngemot 2,6-isomer); 2,5-DIMETHYL PYRAZINE, ALAM; 2,5-Dimethylpyrazine, 99%; 2 , 5-Dimethylpyrazine, Bahan paneliten; 2,5-Dimethyl pyrazine> = 99.0% |
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CAS: |
123-32-0 |
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MF: |
C6H8N2 |
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MW: |
108.14 |
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EINECS: |
204-618-3 |
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Kategori Produk: |
Pyrazine; Senyawa Heterosiklik; Acipimox; Mono- & Polyalkylpyrazines; Rasa pyrazine; Blok Bangunan; Blok Bangunan Heterosiklik; Daftar Abjad; C-D; Rasa lan Wewangian; senyawa Pyrazine; Pyrazines |
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File Mol: |
123-32-0.mol |
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Titik lebur |
15 ° C |
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Titik didih |
155 ° C (surem) |
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kapadhetan |
0,99 g / mL ing 25 ° C (lit.) |
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FEMA |
3272 | 2,5-DIMETHYLPYRAZINE |
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indeks bias |
n20 / D 1.502 (lit.) |
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Fp |
147 ° F |
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temp panyimpenan |
Simpen ing ngisor + 30 ° C. |
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wujud |
Cairan |
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pka |
2,21 ± 0,10 (Ramalan) |
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Gravitasi Khusus |
0.990 |
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warna |
Cetha ora ana warna nganti kuning pucet |
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PH |
7 (H2O) |
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Sensitif |
Hygroscopic |
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Nomer JECFA |
766 |
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BRN |
107052 |
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Referensi CAS DataBase |
123-32-0 (Referensi CAS DataBase) |
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Referensi Kimia NIST |
Pyrazine, 2,5-dimethyl- (123-32-0) |
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Sistem Registrasi Bahan EPA |
Pyrazine, 2,5-dimethyl- (123-32-0) |
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Kode Bahaya |
Xn, Xi |
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Pernyataan Risiko |
22-36 / 37/38-R22 |
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Pernyataan Keamanan |
26-36 |
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RIDADR |
NA 1993 / PGIII |
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WGK Jerman |
3 |
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RTECS |
UQ2800000 |
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Cathetan Bahaya |
Ngirit |
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TSCA |
Nggih |
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Kode HS |
29339990 |
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Properti Kimia |
ora ana warna sing jelas dadi cairan kuning pucet |
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Properti Kimia |
2,5-Dimethylpyrazine duwe bau khas ambune kaya kentang, kanggo daging. |
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Migunakake |
2,5-Dimethyl pyrazine digunakake kanggo campuran panganan, kacang lan rasa minuman. |
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Preparasi |
Kanthi interaksi karo acrolein lan amonia nalika digawe panas ing glisol nalika ana garam amonium; kanthi sation mandiri saka aminoacetone, banjur oksidasi karo merkuri klorida. |
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Nilai ambang ambu |
Deteksi: 80 ppb nganti 1.8 ppm |
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Nilai ambang rasa |
Karakteristik rasa ing 7,5 ppm: apak, kentang, coklat lan nutty kanthi nuansa lemak lan berminyak |
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Profil Keamanan |
Cukup beracun kanthi konsumsi lan rute intraperitoneal. Dilaporake data mutasi. Yen digawe panas nganti dekomposisi, mula bakal ngetokake asap beracun saka NOx |
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Metode Pemurnian |
Ngresiki nganggo picrate (m 150o) sing diuraikan nganggo basa (e, g, KOH) lan distilasi. [Wiggin lan Wicaksana J Chem Soc 4780 1956]. [Beilstein 23/5 V 403.] |
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Bahan baku |
Acrolein |
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Produk Preparasi |
trans-2,5-Dimethylpiperazine -> 2,6-Dimethylpyrazine |
